|Author's Email Address
||This thesis had been viewed 5357 times. Download 4 times.|
|Type of Document
||Selective Cooperation for Dual-Hop Cooperative Communication Networks|
|Date of Defense
||In cooperative communications systems, multiple relays selection scheme and adaptive relay selection scheme are usually adopted. In both schemes, the system makes selections based on instantaneous channel status. However, such schemes have an extremely high computational complexity. In particular, when the channels experience fast fading, the systems do not have sufficient to make a correct decision.|
In this thesis, statistical channel properties are utilized in deciding whether cooperative transmission should be adopted or not. In our investigations, the cooperative mechanism includes direct transmission (DT), decode-and-forward (DF) relaying and amplify-and-forward (AF) relaying. The Ergodic capacity is adopted throughout the theoretical analyses. In addition, a number of approximated thresholds are derived to assist the decision process.
Simulation experiments are conducted to verify the derived results. It is shown that the proposed transmission scheme using the cooperative thresholds is effective in deciding when the cooperative communication is necessary.
||Char-Dir Chung - chair|
Chao-Tang Yu - co-chair
Ding-Bing Lin - co-chair
Chin-Liang Wang - co-chair
Chih-Peng Li - advisor
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|Date of Submission